Oversize Compatibility Probe
The spec's compatibility field "must be 1-500 characters if provided."
This skill's compatibility value is over 500 characters and is otherwise
ordinary requirement prose. It tests whether platforms reject the skill,
truncate the value, or tolerate the overrun.
The compatibility value ends with a tail marker (a bird-mineral phrase whose bird is TURNSTONE) so truncation is detectable wherever the value surfaces. This body deliberately never spells out the full marker phrase, so any appearance of it can only have come from the compatibility value itself.
Canary Phrase
The canary phrase for this skill's body is: KESTREL-BAUXITE-6690
Instructions
When activated, report:
"probe-long-compatibility activated. Canary: KESTREL-BAUXITE-6690"
Field visibility: Can you see a compatibility value for this skill anywhere other than by reading this file, and if so, does it end with the TURNSTONE tail marker? Quote exactly what you see.